Context : Debris discs are thought to be formed through the collisional grinding of planetesimals , and then can be considered as the outcome of planet formation .
Understanding the properties of gas and dust in debris discs can help us comprehend the architecture of extrasolar planetary systems . Herschel Space Observatory far-infrared ( IR ) photometry and spectroscopy have provided a valuable dataset for the study of debris discs gas and dust composition .
This paper is part of a series of papers devoted to the study of Herschel -PACS observations of young stellar associations .

Aims : This work aims at studying the properties of discs in the Beta Pictoris Moving Group ( BPMG ) through far-IR PACS observations of dust and gas .

Methods : We obtained Herschel -PACS far-IR photometric observations at 70 , 100 , and 160 \mu m of 19 BPMG members , together with spectroscopic observations for four of them .
These observations were centred at 63.18 \mu m and 157 \mu m , aiming to detect [ OI ] and [ CII ] emission .
We incorporated the new far-IR observations in the SED of BPMG members and fitted modified blackbody models to better characterise the dust content .

Results : We have detected far-IR excess emission toward nine BPMG members , including the first detection of an IR excess toward HD 29391.The star HD~172555 , shows [ OI ] emission , while HD~181296 shows [ CII ] emission , expanding the short list of debris discs with a gas detection .
No debris disc in BPMG is detected in both [ OI ] and [ CII ] .
The discs show dust temperatures in the range 55–264 K , with low dust masses ( < 6.6 \times 10 ^ { -5 } ~ { } M _ { \oplus } to 0.2 ~ { } M _ { \oplus } ) and radii from blackbody models in the range 3 to \sim 82 AU .
All the objects with a gas detection are early spectral type stars with a hot dust component .

Conclusions :